90212482 has 4 divisors (see below), whose sum is σ = 135318726. Its totient is φ = 45106240.

The previous prime is 90212477. The next prime is 90212483. The reversal of 90212482 is 28421209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57138481 + 33074001 = 7559^2 + 5751^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90212482.

It is not an unprimeable number, because it can be changed into a prime (90212483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22553119 + ... + 22553122.

Almost surely, 2^90212482 is an apocalyptic number.

90212482 is a deficient number, since it is larger than the sum of its proper divisors (45106244).

90212482 is a wasteful number, since it uses less digits than its factorization.

90212482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45106243.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 90212482 is about 9498.0251631589. The cubic root of 90212482 is about 448.4928707511.

The spelling of 90212482 in words is "ninety million, two hundred twelve thousand, four hundred eighty-two".